83 research outputs found

    Transformations of identity and society in Essex, c.AD 400-1066

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    This study examines the archaeological reflections of group identity and socio-economic networks in the region of Essex and London in the Anglo-Saxon period, between c.400 and 1066. Given its location in the south-east of England, Essex was a key zone of socio-political interaction during the early medieval period. This doctoral research has brought together the stray and excavated archaeological material from the region for the first time. The thesis presented here is centred on diachronic, quantified distributional analyses of three key material culture classes: dress accessories, pottery, and coinage. The discussion synthesises the results of these analyses, examining the observed patterns within their broader archaeological context. The thesis reveals the emergence of a hybrid dress style in the 5th and 6th centuries. This appears to have been actively created in Essex to reflect a diverse cultural inheritance, but not a specific ethnic identity. However, from the mid-7th century these styles were rejected in favour of dynamic fashions, reflecting the maritime focus of the region, and especially links with the Merovingian/Carolingian Continent. From the later 9th century, Scandinavian dress and cultural practice are also apparent, particularly in north Essex This Continental orientation reflects the emergence and transformation of the North Sea network. The engagement of Essex communities with this network is studied in detail in this thesis. The coinage and pottery analyses reveal the emergence of several exchange hubs along the North Sea coast, as well as a generalized engagement with long-distance exchange among coastal communities. This system was disrupted, but not destroyed, by the Vikings, who linked Essex with wider Scandinavian networks. However, the long-term pattern shows the decline of coastal sites in favour of urban centres from the later 9th century

    Quality evaluation of olive oil by statistical analysis of multicomponent stable isotope dilution assay data of aroma active compounds

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    An instrumental method for the evaluation of olive oil quality was developed. Twenty-one relevant aroma active compounds were quantified in 95 olive oil samples of different quality by headspace solid phase microextraction (HS-SPME) and dynamic headspace coupled to GC-MS. On the basis of these stable isotope dilution assay results, statistical evaluation by partial least-squares discriminant analysis (PLS-DA) was performed. Important variables were the odor activity values of ethyl isobutanoate, ethyl 2-methylbutanoate, 3-methylbutanol, butyric acid, E,E-2,4-decadienal, hexanoic acid, guaiacol, 2-phenylethanol, and the sum of the odor activity values of Z-3-hexenal, E-2-hexenal, Z-3-hexenyl acetate, and Z-3-hexenol. Classification performed with these variables predicted 88% of the olive oils? quality correctly. Additionally, the aroma compounds, which are characteristic for some off-flavors, were dissolved in refined plant oil. Sensory evaluation of these models demonstrated that the off-flavors rancid, fusty, and vinegary could be successfully simulated by a limited number of odorants

    Transformations of identity and society in Essex, c.AD 400-1066

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    This study examines the archaeological reflections of group identity and socio-economic networks in the region of Essex and London in the Anglo-Saxon period, between c.400 and 1066. Given its location in the south-east of England, Essex was a key zone of socio-political interaction during the early medieval period. This doctoral research has brought together the stray and excavated archaeological material from the region for the first time. The thesis presented here is centred on diachronic, quantified distributional analyses of three key material culture classes: dress accessories, pottery, and coinage. The discussion synthesises the results of these analyses, examining the observed patterns within their broader archaeological context. The thesis reveals the emergence of a hybrid dress style in the 5th and 6th centuries. This appears to have been actively created in Essex to reflect a diverse cultural inheritance, but not a specific ethnic identity. However, from the mid-7th century these styles were rejected in favour of dynamic fashions, reflecting the maritime focus of the region, and especially links with the Merovingian/Carolingian Continent. From the later 9th century, Scandinavian dress and cultural practice are also apparent, particularly in north Essex This Continental orientation reflects the emergence and transformation of the North Sea network. The engagement of Essex communities with this network is studied in detail in this thesis. The coinage and pottery analyses reveal the emergence of several exchange hubs along the North Sea coast, as well as a generalized engagement with long-distance exchange among coastal communities. This system was disrupted, but not destroyed, by the Vikings, who linked Essex with wider Scandinavian networks. However, the long-term pattern shows the decline of coastal sites in favour of urban centres from the later 9th century.EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    A stereospecific route to (Z) and (E) β-alkyl bromoalkenes

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    An approach to the stereospecific synthesis of nordebromolaurinterol

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    Beyeren-19-ol from Helipterum craspedioides

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    The total synthesis of (±)-α-Amorphene

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